derek.holloway
7502bf64a4
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57 lines
1.7 KiB
LLVM
57 lines
1.7 KiB
LLVM
; RUN: llc -mtriple=hexagon -o - %s | FileCheck %s
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; Test coverage for HexagonConstExtenders: exercise constant extender
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; optimization for store-immediate patterns. Multiple uses of the same
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; large immediate constant in store operations should share an extender.
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; CHECK-LABEL: test_store_imm:
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; CHECK: ##
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define void @test_store_imm(ptr %p) {
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entry:
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%p0 = getelementptr i8, ptr %p, i32 100000
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%p1 = getelementptr i8, ptr %p, i32 100004
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%p2 = getelementptr i8, ptr %p, i32 100008
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%p3 = getelementptr i8, ptr %p, i32 100012
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store i8 1, ptr %p0, align 1
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store i8 2, ptr %p1, align 1
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store i8 3, ptr %p2, align 1
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store i8 4, ptr %p3, align 1
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ret void
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}
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; Exercise constant extender optimization with multiple loads from a
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; global array with large offsets.
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@big_array = external global [100000 x i32], align 4
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; CHECK-LABEL: test_load_large_offsets:
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; CHECK: ##
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define i32 @test_load_large_offsets() {
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entry:
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%p0 = getelementptr [100000 x i32], ptr @big_array, i32 0, i32 25000
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%p1 = getelementptr [100000 x i32], ptr @big_array, i32 0, i32 25001
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%p2 = getelementptr [100000 x i32], ptr @big_array, i32 0, i32 25002
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%p3 = getelementptr [100000 x i32], ptr @big_array, i32 0, i32 25003
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%v0 = load i32, ptr %p0, align 4
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%v1 = load i32, ptr %p1, align 4
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%v2 = load i32, ptr %p2, align 4
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%v3 = load i32, ptr %p3, align 4
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%s0 = add i32 %v0, %v1
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%s1 = add i32 %s0, %v2
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%s2 = add i32 %s1, %v3
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ret i32 %s2
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}
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; Exercise constant extender with arithmetic using large immediates.
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; CHECK-LABEL: test_arith_large_imm:
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; CHECK: ##
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define i32 @test_arith_large_imm(i32 %a, i32 %b, i32 %c) {
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entry:
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%add1 = add i32 %a, 100000
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%add2 = add i32 %b, 100000
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%add3 = add i32 %c, 100000
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%s1 = add i32 %add1, %add2
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%s2 = add i32 %s1, %add3
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ret i32 %s2
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}
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